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Finding the Fourth Proportional to 74,604, 111,906 and 22,012.74

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Solution

The fourth proportional to 74,604, 111,906 and 22,012.74 is: 33,019.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,604 : 111,906 = 22,012.74 : x
  2. Step 2: Convert to fraction form
    74,604/111,906 = 22,012.74/x
  3. Step 3: Cross multiply
    74,604x = 111,906 × 22,012.74
  4. Step 4: Simplify right side
    74,604x = 2,463,357,682.44
  5. Step 5: Solve for x
    x = 2,463,357,682.44/74,604
  6. Step 6: Final answer
    x = 33,019.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.